# 定义一个浮点数变量
pi = 3.14159

# 打印变量的值
print("Value of pi:", pi)

# 进行一些基本的数学运算
radius = 5.0
area = pi * radius * radius
print("Area of the circle with radius", radius, "is", area)

# 判断圆的面积是否大于某个值
if area > 100:
    print("The area is greater than 100.")
else:
    print("The area is less than or equal to 100.")
